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Mike at Victory seeds trials all varieties before he even lists them for sale.

So when he lists quite disease tolerant , no such thing as resistance,it seems to me that Mike is referring only to the year he trialed a specific variety.

Commercial seed sites such as Mike's,save LOTS of seeds of any variety the first time grown so they have several years worth of seeds available and store those seeds under conditions where they will lose the least viability.

The Dwarf Tomato Project really had to focus on what we could with our resources and process - very flexible. We focused on appearance and flavor first and foremost....any work on breeding in any disease tolerances was well beyond our capability.

As far as each release, I would expect that they would reflect the characteristics of the parents used in the crosses. With 106 releases, and having grown a LOT of them (as well as many in the development), it is so hard to judge disease tolerance, because each season varies widely, presence of diseases vary widely.

A next step that is beyond our project, but would be useful going forward, would be to take some of the best and most interesting ones and start working on crosses to breed in some disease tolerance. That is some really hard work to do, though, without lots of people, lots of land, funding, etc